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20.
REASONING
The relation
2
tan
v
rg
θ
=
(Equation 5.4) determines the banking angle
that a banked curve of radius
r
must have if a car is to travel around it at a speed
v
without relying on friction.
In this expression
g
is the magnitude of the acceleration
due to gravity.
We will solve for
v
and apply the result to each curve.
The fact that
the radius of each curve is the same will allow us to determine the unknown speed.
SOLUTION
According to Equation 5.4, we have
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This note was uploaded on 01/29/2010 for the course CALC 01:640:135 taught by Professor Soffer during the Spring '08 term at Rutgers.
 Spring '08
 SOFFER

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